Process for producing D- copper-amine quaternary ammonium salt wood repellent

A technology of quaternary ammonium salt and protective agent, which is applied in the field of preparation of D-type copper amine quaternary ammonium wood protective agent, which can solve problems such as unstable properties, difficult to control the ratio, and complex preparation process of D-type copper amine quaternary ammonium salt.

Inactive Publication Date: 2004-06-02
DONGGUAN CITY TIANBAO WOOD PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the D-type copper amine quaternary ammonium salt is relatively complicated, and the copper salt used is not specified, and the proportioning situation is difficult to control; at the same time, the active ingredient of this kind of protective agent ( The sum of Cu (expressed as CuO and quaternary ammonium salt expressed as didecyldimethylammonium chloride) is 15% (w / w), and when the protective agent is diluted to below 0.5% (w / w), there will soon be Light sky blue flocculent precipitate, when diluted to a solubility of 1.0% (w / w), flocculent precipitate also occurs after a little longer (2-3 days), and the property is unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Weigh 250g of ethanolamine, 72g of didecyldimethylammonium chloride, 100g of ammonium carbonate, 425g of water, and 153g of basic copper carbonate (containing 100g of CuO). Mix ethanolamine, didecyldimethylammonium chloride and ammonium carbonate together according to the above preparation sequence, then inject water and add a small amount of inactive component additives, then add basic copper carbonate, and finally stir for 1 to 2 hours, The D-type copper amine quaternary ammonium salt wood protective agent containing CuO+DDAC of 15% can be obtained, the pH value is 10.6-10.7, and the product property is stable.

Embodiment 2

[0015] Weigh 390g of ethanolamine, 92.7g of didecyldimethylammonium chloride, 97.5g of ammonium carbonate, 221.5g of water, and 198.3g of basic copper carbonate. Then mix ethanolamine, didecyldimethylammonium chloride and ammonium carbonate together according to the above preparation sequence, then inject water and add a small amount of inactive component additives, then add basic copper carbonate, and finally stir for 1 to 2 hours , the D-type copper amine quaternary ammonium salt wood protective agent containing CuO+DDAC of 19.4% can be obtained, and the product has stable properties and no precipitation.

Embodiment 3

[0017] Weigh 300 g of ethanolamine, 72 g of didecyldimethyl ammonium chloride, 100 g of ammonium carbonate, 50 g of ammonium bicarbonate, 355 g of water, and 123 g of copper hydroxide (containing 100 g of CuO). According to the above preparation sequence, first mix ethanolamine, didecyldimethylammonium chloride, ammonium carbonate, and ammonium bicarbonate together, then inject water and add a small amount of inactive component additives, then add copper hydroxide, and finally stir for 24 After 1 hour, the D-type copper amine quaternary ammonium salt wood protective agent containing CuO+DDAC of 15% can be obtained, which has stable properties, no precipitation, and a pH value of 10.4.

[0018] According to the experimental test, the protective agent prepared according to the method of the present invention is stable in properties, not only does not have precipitation in the state of concentrated solution, but also does not produce precipitation even if the solution is diluted t...

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Abstract

The present invention relates to the field of timber preserving technology, and is especially the preparation process of D-type copper quaternary ammonium salt timber preservative. During its preparation, copper salt of organic acid is used as copper source and ammonium carbonate as source of carbonic radical ion, and the preparation process includes mixing ethanolamine, didecyl dimethyl ammonium chloride and ammonium carbonate, adding water, adding copper salt of organic acid and stirring. The D-type copper quaternary ammonium salt timber preservative has pH value of 9-11, effective components as high as 20 %, reduced packing and transport cost, high stability and no precipitate. Reducing the amount of ethanolamine while increasing the amount of ammonium carbonate can ensure the complete dissolution of copper, reduce the toxicity of product and reduce product cost.

Description

Technical field: [0001] The invention relates to the technical field of wood protective agents, in particular to a method for preparing a D-type copper amine quaternary ammonium salt wood protective agent. Background technique: [0002] Copper amine quaternary ammonium salt (ACQ) wood protective agent is a kind of alkaline copper quaternary ammonium salt fixed water-borne wood protective agent. The product is a clear, slightly viscous, red-blue aqueous solution. The main active ingredients are copper (expressed as CuO) and alkylammonium compounds (expressed as didecyldimethylammonium chloride, namely DDAC), which have good anti-corrosion and insect-proof effects, and have better resistance to water loss , so it can be used to treat wood and wood products used in the open air; in addition, a waterproofing agent can also be added to this type of protective agent to increase the waterproof performance of the protective treated wood. According to the standard book of the Americ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02
Inventor 金重为
Owner DONGGUAN CITY TIANBAO WOOD PROTECTION TECH
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